4.5MM CS X 65MM ID BLACK BUNA 70D

Part number H4.5X65 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 65 mm (2.559 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 74 mm (2.91 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Expect good resistance to many alcohols, propane and butane, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or ozone and direct sunlight call for a different compound.

You will find this material specified across fluid power, construction equipment, and automotive.

Stocked as H4.5X65 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.